SIMULATION STUDY OF THE TECTONIC STRESS FIELD IN MINES———A CASE STUDY OF THE BAODIAN COAL MINE

WANG Ji-lin; JIANG Bo; WANG Chao-yong

Volume 13 Issue 3

Sep. 2007

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WANG Ji-lin, JIANG Bo, WANG Chao-yong, 2007. SIMULATION STUDY OF THE TECTONIC STRESS FIELD IN MINES———A CASE STUDY OF THE BAODIAN COAL MINE. Journal of Geomechanics, 13 (3): 239-246.

Citation:

WANG Ji-lin, JIANG Bo, WANG Chao-yong, 2007. SIMULATION STUDY OF THE TECTONIC STRESS FIELD IN MINES———A CASE STUDY OF THE BAODIAN COAL MINE. Journal of Geomechanics, 13 (3): 239-246.

Citation:

WANG Ji-lin, JIANG Bo, WANG Chao-yong, 2007. SIMULATION STUDY OF THE TECTONIC STRESS FIELD IN MINES———A CASE STUDY OF THE BAODIAN COAL MINE. Journal of Geomechanics, 13 (3): 239-246.

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SIMULATION STUDY OF THE TECTONIC STRESS FIELD IN MINES———A CASE STUDY OF THE BAODIAN COAL MINE

China University of Mining & Technology, Xuzhou 221008, Jiangsu, China

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Received: 2007-07-01
Published: 2007-09-01

Abstract

Abstract

By physical experiments and numerical simulation, the ruptural deformation process and failure morphological features of rock masses were analysed.The rule in the course of rock mass failure deformation was summarized.The rock mass with homogeneous lithologic character can be treated as isotropy on a macroscopic scale. The defects existing in a geologic body naturally such as holes, fissures and bedding planes make the stress in a geologic body distributed unevenly. Rupture first takes place in a high stress difference area of the geologic body when the stress difference reaches or exceeds the ultimate strength. The failure deformation will continue with increasing tectonic stress and the strike of failure planes is approximatively parallel to the high-stress difference isolines. Based on an analysis of mine geologic conditions and tectonite fabrics, according to the rule in the course of rock mass failure deformation, the mode and direction of action of external force for the Yanshanian structures in the mines are analyzed by taking the Baodian coal mine for example.By comparative analysis, the sequence of formation of structures in the mine is validated, and the evolution of mine structure is revealed.
- rock mass,
- failure criterion,
- mine structure,
- stress field,
- simulation

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References(8)

References

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